Visit Serenity beach
prominade beach (rock beach)
french war memorial (Matrimandir)
Paradise beach (a beautiful river island)
you can enjoy Scuba diving in pondy
2days are enough to explore city
Try to take beach side accommodation so u can capture Sunrise beautifully... some nice cafes are there to offer you varsities of food.
U can rent bike just in Rs 300 a day.
beaches are peaceful and clean..
i visited pondy in April 2017
it was hot but bearable.. and u r visiting in February then i think temperature will be moderate.